• Post Reply
  • Bookmark Topic Watch Topic
  • New Topic

calling same jsp on submit button

 
Diptee Bhakre
Greenhorn
Posts: 2
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
I am facing problem in my jsp.
I am calling same jsp called a.jsp when I click my submit button. I want to call getList() to call once when jsp is calling for first time and when submit is click , no need to call getList(). I am doing some opreation on arraylist provided by getList(). Could any body help me how I can achieved it? My jsp and java code is posted here. My code is as follows.
<%@page import="Processor"%>
<%@ page import="java.util.*, java.sql.* ,java.io.*"%>
<jsp:useBean id="bean" class="Processor" scope="session">
</jsp:useBean>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>Insert title here</title>
</head>
<body>
<form name="branch" target="_top" action="" method="get">
<input type="submit" name="submit" value="submit"/>
</form>
<%! ArrayList list = new ArrayList(); %>
<%
if(!session.isNew())
{
list=bean.getList();

for (int i=0;i<list.size(); i++)
{

out.println("List is" + list.getList(i));

}
}
%>
</body>
</html>

Nd My bean class is as follows.
import java.io.*;
import java.util.*;

public class Processor
{
ArrayList allBranchList = new ArrayList();
public ArrayList getList()
{

try
{
String lineData = null;
File f = new File("C:/abc.txt");
FileReader fr = new FileReader(f);
BufferedReader bfr = new BufferedReader(fr);
while((lineData = bfr.readLine())!= null)
{
allBranchList.add(lineData);
}
}
catch( Exception e)
{
e.printStackTrace();
}
return allBranchList;
}


public static void main(String args[])
{


}

}


Thanks in advance.


 
Bear Bibeault
Author and ninkuma
Marshal
Pie
Posts: 64718
86
IntelliJ IDE Java jQuery Mac Mac OS X
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
The solution to many vexing problems like this is to structure your web apps properly. Step one of that effort is to remove all Java code from the JSPs and not use them as controllers.

Please read this article for information on properly structuring web apps.
 
  • Post Reply
  • Bookmark Topic Watch Topic
  • New Topic